Okay, I got the new hard drive going and just now while watching a video on youtube it did the freezy thing again. I sat there for a minute staring in anger and then as a last ditch effort unplugged the usb receiver, per Kyle's suggestion. Then believe it or not everything pulled up instantly! Now, the computer is currently too far away for a wired keyboard but surely there's a fix for this? Can't believe I went through all those reinstalls, surely causing pain to my perfectly working drive, to find out that it was the stupid receiver..